You'll probably have been thorough enough to swap a known working motor onto the connections for Motor 2.
Maybe check the driver chips very carefully - perhaps with an eyeglass - to see if a 'leg' has been bent in or out so that it doesn't slot into the chip holder?
If you have the tools and the ability to use them my next recourse would be to disconnect everything and do continuity checks on the path from GPIO6 (Physical pin #31 on the 2x20-way header) to the corresponding Enable pin on the Driver chip holder. You will need a pinout diagram for the L293D which you can probably get from the link on Page 15 of the manual.
Maybe check the driver chips very carefully - perhaps with an eyeglass - to see if a 'leg' has been bent in or out so that it doesn't slot into the chip holder?
If you have the tools and the ability to use them my next recourse would be to disconnect everything and do continuity checks on the path from GPIO6 (Physical pin #31 on the 2x20-way header) to the corresponding Enable pin on the Driver chip holder. You will need a pinout diagram for the L293D which you can probably get from the link on Page 15 of the manual.
Statistics: Posted by B.Goode — Tue Feb 06, 2024 6:45 pm